Directed cultivation method for drought-resisting water-saving variety of winter wheat

A breeding method and winter wheat technology, applied in the field of comprehensive selection of winter wheat drought-resistant and water-saving varieties of different generations of alternate flood and drought directional cultivation, can solve the problems of winter wheat varieties such as non-drought resistance, non-lodging resistance, low yield potential, etc., and achieve outstanding drought resistance and water-saving performance , increase the selection, and the effect of suitable promotion and application

Active Publication Date: 2011-09-28
DRY LAND FARMING INST OF HEBEI ACAD OF AGRI & FORESTRY SCI
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Problems solved by technology

[0003] The traditional winter wheat drought-resistant breeding method pays attention to the selection of drought resistance while leaving the selection of lodging resistance, disease resistance, high yield and stable yield. The winter wheat varieties selected under drought conditions often do not perform well under high water and fertilizer conditions. Poor lodging resistance and disease resistance, low yield potential, and unstable yield; while high-yield breeding is out of touch with drought-resistant and water-saving breeding, and winter wheat varieties bred under high water and fertilizer conditions often show no drought resistance and are prone to premature aging

Method used

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  • Directed cultivation method for drought-resisting water-saving variety of winter wheat
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  • Directed cultivation method for drought-resisting water-saving variety of winter wheat

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Embodiment 1

[0025] A method for directional cultivation of winter wheat drought-resistant and water-saving varieties, mainly comprising the following steps:

[0026] A. From the drought-resistant, water-saving and high-yield germplasm resource materials, excellent complementary parent materials were selected: Heng 84 Guan 749 and Heng 87-4263, and hybridized;

[0027] B. Directional cultivation, select new strains with strong drought resistance and high yield:

[0028] B-1, early generation: F 1-4 Generation, planting under high water and fertilizer conditions, so that the excellent traits and unfavorable traits can be fully expressed, the key traits (high yield, disease resistance and lodging resistance) are selected, and a variety of variation types are kept as much as possible; among them,

[0029] (1)F 1 Generation: adopt 1-inch on-demand seeding, only select high-quality combinations, do not select single plants, and eliminate combinations with outstanding defects; the hybridizatio...

Embodiment 2

[0058] A winter wheat drought-resistant and water-saving variety directed cultivation method, its main difference with embodiment 1 is:

[0059] The excellent complementary parent materials in step A are: Ji 5418 and Heng 5041;

[0060] In step D-2, the high-generation material is cycled alternately between flood and drought to F 5 Generation out of the nursery to select new strains with strong drought resistance and high yield; see attached for the cycle diagram figure 2 .

Embodiment 3

[0062] A winter wheat drought-resistant and water-saving variety directed cultivation method, its main difference with embodiment 1 is:

[0063] The excellent complementary parent materials in step A are: Heng 94-4277 and Heng 4041;

[0064] In step D-2, the high-generation material is cycled alternately between flood and drought to F 6 Generation out of the nursery to select new strains with strong drought resistance and high yield; see attached for the cycle diagram image 3 .

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Abstract

The invention discloses a directed cultivation method for a drought-resisting water-saving variety of winter wheat. The directed cultivation method mainly comprises the following steps: A, selectively pairing and hybridizing excellent complementary parent materials; and B, carrying out directed cultivation to select a new strain with strong drought resistance and high yield, wherein the step B iscarried out according to the following operations: B-1, planting early-generation F1-4 materials under high water and fertilizer conditions, and selecting based on yielding ability; and B-2, taking higher-generation materials (above generation F5) in duplicate, respectively planting under high water and fertilizer conditions and drought stress conditions in an inter-generation water-drought alternation manner, and selecting the new strain with strong drought resistance and high yield. The selected new variety of winter wheat has outstanding drought resistance and water-saving property, and has the characteristics of high yielding potential and strong stress resistance.

Description

technical field [0001] The invention relates to the technical field of breeding of new varieties of crops, in particular to a comprehensive selection technology for drought-resistant and water-saving varieties of winter wheat in different generations of alternating flood and drought directional cultivation. Background technique [0002] Wheat is one of the main food crops in my country. The perennial sown area is 340 million mu, of which the northern winter wheat area is 276 million mu, accounting for about 60%. In this area, the south of the Great Wall of Hebei, the middle and eastern part of Shanxi, the Yan'an area of ​​Shaanxi, Ningxia, Xinjiang, and eastern Gansu have an annual planting area of ​​nearly 100 million mu. This area is located in arid and semi-arid areas, and 50% of the wheat fields are not irrigated. Wheat fields and dry wheat fields have high and low yields and poor yield stability. The main factor affecting it is drought and water shortage. The lack of wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01G1/00
Inventor 陈秀敏孙书娈谢俊良乔文臣孟祥海魏建伟李丁李强
Owner DRY LAND FARMING INST OF HEBEI ACAD OF AGRI & FORESTRY SCI
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